Battery



Patented Apr. 22, 1924.

UNITED STATES PATENT oFFicE.

THOMAS APPLEBY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOROF ONE-THIRD TCORNELIUS D. EHRET, 0F MOUNTAIRY, THILADELPHIA, PENNSYLVANIA. l

BATTERY.

application nea February es, 1924. sensi no. 694,499.

To all lwlw/m, it may concern:

Be it known that l, THOMAS APPLEBY, a citizen of, the United States,residing in the city and county of Philadel hia, tate of Pennsylvania,have invente certain new and useful improvements in Batteries, of whichthe following is a specification.

My invention relates to batteries utilized in connection with thermionicdevices or i0 vacuum tubes, such as audions, as used in the radio artand in kindred relations.

linaccordance with my invention, l provide in a single unit both B and Cbatteries, utilized, respectively, for furnishing te thev current forthe plate or anode circuit c and for biasing the grid or controlelectrode of a vacuum tube of the audion type.

ln accordance with my invention, there is'formed in a single unit aseries of cells il@ constituting the B battery, and in addition asuitable number of cells in series with each other, and in series withthe B battery cells and serving as the C battery, suitable [terminalsbeing provided for properly connecting the batteries in circuit, andmore particularly, for connecting them properly in circuit With aminimum of leads or connecting conductors from the battery unit to thevacuum tube ap aratus. My inventionres es in a battery and apparatus ofthe character hereinafter' del,scribed and claimed.

Flor an illustration of one of the forms my invention may take,reference may be' had to the accompanying drawing, in which:

Fig. l is inpart a diagrammatic view of' a radio receiving system and inpart a top plan v1ew of a combined B and C battery unit.

c@ m Fig. 21'isa side elevational view of the battery unit shown in Fig.1.

Referring to the drawing, D is an antenna or other suitable structurevfor absorbing the electro-radiant energy from the natural media.Between it and the earth or counterc poise capacity E are connected thevariable condenser K and the primary P of an oscillation transformer.-Inductively related to the primary P is the secondary S, shunted by thetuning condenser K1, in the input v or grid circuit of the vacuum tubeV, serving as a detector, and comprising the anode a, grid g andfilament or cathode f. ln series with the grid is the usual gridcondenser K2, shunted by the leak resistance fr.

ln the anode circuit ofthe tube V is the primary P1, of an audiofrequency transformer, and the tickler or regenerative coil L, oneterminal of the primary P1 bein connected to the binding post or terminal of the instrument or set. The secondary S1 of the audiov frequencytransformer is connected, on the one hand,'to the grid g of the secondvacuum tube V1, utilized as an audio frequency amplifier, and, on theother hand, to the terminal or binding post 2 of the instrument or set.Similarly, in the anode circuit of the tube V1 is the primary P2 of anaudio frequency transformer, Whose terminal is connected to the bindingpost 3 of the instrument or set. The secondary S2 is connected, on theone hand, to the grid gk of the second audio frequency amplifier tubeV2, and, on the other hand, to the aforesaid binding post 2. ln theanode circuit of the tube V2 is the telephone or loud speaker T, Whoseone terminal is connected to the aforesaid binding post or terminal 3.

A is a storage battery or other suitable source ofV current for'rendering the lilaments or cathodes i incandescent. Its positiveterminal is connected to the binding post 4 of the instrument or set,with which is connected one terminal of each of the ilaments f, whose.other terminals are connected through the filament rheostats R with thebinding post 5 of the instrument or set connected with the negativeterminal of the battery A.

In a suitable container F, ofsheet metal' .tov

The negative terminal of the B battery series is indicated at 7, and thesaine is connected to the aforesaid l nected the negative terminal ofthe battery procure suitable lesser voltages.

' the aforesaid terminal 7,

Associated with the B battery cells in the container F are the C batterycells, indicated. at C, oiany suitable number. In the exampleillustrated, there are three connect-v ed in series with each other andforming with kthe B battery cells a rectangle completely' filled withcells. The positive terminal of the series of C battery cells is atwhich is the ne a.- tive terminal of the B battery series. 'Ihe A.secondand third C battery cells are rovidedrespectively, with terminals9 an 10, either of which is connected to the aforesaid negative Cbattery binding post 2,

whereby a negative voltage of a ut 3 or about- 4% volts is impressedupon the grids g of the two audio frequency amplifier tubes V1' and V?.j

4B the arrangement described, both the anod7e circuit battery cells Band the grid biasing battery 4cells C are .assembled as -a singleunit,and, as indicated2 and preferably, are all connected in series with eachother and suitable terminals provided for eli'ecting both' dierentvoltages for anode circuit purposes and for providing different voltages:for grid biasing purposes. Furthe'rmore, .by the battery structureshown and described, there those numbered 2,

is employed a minimum 0f connecting wires or conductors for connectingwith. the setor instrument, which, as shown, requires but three bindingposts, 4 and 5, for' the A and C battery connections, and the negative Bbattery connection.

' The B and C battery cells are suitably s aced and insulated from eachother within t e container F, and filling or. packing material isdisposed between the cells and the container F for holding them rigidlywitl respect to each other in'a unitary construction. c. What I claimis: 1. A B and C battery unit iorthe purposes described, comprising aseries of .B attery cells and a C battery cell assembled `in a sin leportable unit. l 2. A and C battery unit for the pur,-v oses described,comprising aseries ofB attery cells and aC battery cell assembled '/l ina single portable unit, the C battery cell with the B batterybeingconnected in series post 5, to` which is also concells, and a commonterminal on the exterior of the u nit connectingwith one terminal of theC battery cell and one terminal ofa B battery cell.

3. A` B and C battery unit for the purposes described,'comprising aseries of B attery cells and a C battery cell assembled in a singleportable unit, and a terminal on the exterior of the unit connected withthe negati-ve terminal of the B battery and with the positive terminalof said C battery cell.

4. A B and C battery unit for the purposes described, comprising aseries of B attery cells and a series of C battery cells assembled in asingle portable unit.

5. A B and C battery un'it for the purposes described, comprising a'seriesof B battery cells and a series of' C battery cells assembled ina singleportable unit, the number of B and C batterv cells being suchthat they form in. assembly a complete rectangle.

6. A B and C battery unit for the purosesdescribed, comprisin a seriesof B atte cells and a series o C battery cells assem led in a singleportable unit, the B battery cells being disposed in rows havingdifferent numbers of cells, and the C battery cells completing the row or rows of B battery cells having the lesser number of B battery cells.

7. A B and C battery oses described, comprising a series' of B yatterycells and a series of C battery cells assembled in a single portableunit, the B battery cells connected .in series with each other and withthe C battery cells, and a common terminal on thevexterio'r of the unitconnecting with a terminal of an -end cell of the B battery series andwith a terminal of an end cell of the C battery series.

-.8. A B and C battery unit for. the purposes described, comprisin aseries of B battery cells'and a series 0 assembled in a single portableunit, the B battery cells connected in series with each other and withtheC battery cells, and a common terminal on the exterior of the unitconnecting with the negative terminal of the B batte lseries and thepositive terminal of the C attery series.

9. A B and Cbattery unit for the purposes described, com-prisin 'aseries of B atter cells and series o C battery cells assem led in asingle portable unit, the B batterycells connected in series with 'eachother andwith the C battery cells, `a common terminal on the exteriorofthe unity connecting with the negative terminal of the B batteryseries and the positive terminal of exterior of the unit connecting withthe egative terminal of a diierent cell oflthe unit for the pur? Cbattery cells the C: battery series, and a terminal on the osesolescribeol, comprising e series of B battery series end the4 ositiveterminal of utter cells and e, series o 'C battery cells the C batteryseries, en e plurality of teressem led in a single portable unit, the Bminals on .the exterior of seid unit eonneet- E@ battery cells connectedin series with eecli ing,reepeetively, with the negative terminals 5other and with the C battery cells, e commonc of cells of the C 'batteryserlee,

terminal on 'the exterior of the unit connecting with the negativeterminal et the B THMAS APPLEBY.

